What's the issue?

We (the BBC) had a complaint from a user for AMP Stories, who encountered the "expand your window" message.

They, quite rightly to my mind, tried to expand their window width-ways and the message did not disappear even when they were at the full width of their screen.

The message should really say "expand the height of your browser window", as this is what is required - a more portrait aspect ratio.

How do we reproduce the issue?

Message from the user read as follows..

I click at the last link at https://www.bbc.com/news/science-environment-46582265
and it directs me to https://www.bbc.co.uk/news/ampstories/climatesteps/index.html
where I find just this web page with no further information or other effects
http://oi63.tinypic.com/30siljd.jpg

If you resize your browser window to be full width, but only, say, 50% height, you will see the same message. Their browser window was not quite high enough (excluding the browser and OS furniture) to engage with the content.

A more helpful message would be appreciated by those desktop users who have not experienced AMP stories before

What browsers are affected?

Desktop browsers

Which AMP version is affected?

All